Royal wedding by the numbers

Caption

Sean Gallup / Getty Images

All eyes will be on Prince William and Kate Middleton as they take their wedding vows Friday. Here's a tally of everything from the number of palace guards to the cost of the engagement ring for the royals' road to the altar.

All eyes will be on Prince William and Kate Middleton as they take their wedding vows Friday. Here's a tally of everything from the number of palace guards to the cost of the engagement ring for the royals' road to the altar. (Sean Gallup / Getty Images)